Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1993-08-17
1997-01-21
Chin, Stephen
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
371 43, 371 35, H04K 110
Patent
active
055966047
ABSTRACT:
A transmission system using multicarrier modulation applies FECC (forward error correcting code) coding and codeword interleaving differently to input signals from a plurality of different data channels to produce encoded data signals having different reliabilities and different coding delays. Bits of encoded data signals having relatively less delay are allocated to carriers that are subject to relatively more attenuation and/or channel noise, and hence that are allocated fewer bits for transmission in each symbol period, to reduce the effects of impulse noise. The data channels can comprise video, data, and control channels transmitted on an ADSL (asymmetric digital subscriber line) two-wire telephone line.
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Aslanis James T.
Cioffi John M.
Gooch Antoinette H.
Tong Po
Amati Communications Corporation
Chin Stephen
Ghebretinsae T.
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